MORSE Screw Machine Drill, High Performance Heavy Duty Web, Series: 1360T, Imperial, 5/16 in Drill - Fraction, 0.3125 in Drill - Decimal Inch, 79 mm Overall Length, 3XD Cutting Depth, Wide Land Parabolic Flute, 37 mm Flute Length, 5/16 in Shank, Straight Shank, 130 deg Point, Self-Centering Point, Right Hand Cutting Direction, M35 Cobalt Cutting Edge, M35 Cobalt, TiAlN, Applicable Materials: Alloy Steel, Ferrous Casting, Inconel, Stainless Steel, Titanium and Other Difficult-to-Drill Material